- Texas AIP Consumer Audio User's Guide

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1.3 DEM-DAI3793A/3794A EVM Description
DEM-DAI3793A/3794A EVM Description
Table 1-1. PCM3793A/94A Terminal Functions (continued)
TERMINAL
NAME PCM3793ARHB PCM3794ARHB I/O DESCRIPTION
SCKI 7 7 I System clock
SPOLN 14 – O Speaker output L-channel for negative (PCM3793A only)
SPOLP 15 – O Speaker output L-channel for positive (PCM3793A only)
SPORN 10 – O Speaker output R-channel for negative (PCM3793A only)
SPORP 11 – O Speaker output R-channel for positive (PCM3793A only)
V
CC
20 20 – Analog power supply
V
COM
18 18 – Analog common voltage
V
DD
5 5 – Power supply for digital core
V
IO
4 4 – Power supply for digital I/O
V
PA
12 12 – Power supply for power amplifier
The DEM-DAI3793A/3794A evaluation module permits user control of the entire PCM3793A/94A system.
The EVM allows users to test playback with and without digital input; recording through digital input/output
with an optical cable or RCA jacks; a line input/output; stereo speaker output (PCM3793A only);
stereo/mono headphone output; and stereo/mono microphone input, as shown in Figure 1-3 .
Figure 1-3. DEM-DAI3793A/3794A EVM System Diagram
SBAU127 – July 2007 Description 15
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